This is a free animation of tits that jiggle just like big natural tit. I used magnets to animate Jessi breasts individually even though the e-frontier model does not provide the breast morphs.

If Jessica Alba had a boob job, she might look the girl in this animation. I'm still trying to figure out how to make Jessica's boobs bounce by themselve, but I haven't had any luck. I'm using poser 8 to modify the Alyson character in the face room to make her look like Jessica Alba. The render time was around 3 hours for this animation. I thought about using Maya 10, or Cinema 4D, but why re-invent the boob, when I can just use Poser.

This is a computer generated lady running naked without a bra. Her large natural boobs are just jiggling all over the place.

Here is a simulation how it might look if Angelina Jolie was dancing. The motion file was not make for this body type, but, you get the idea.